linux-kernel - linux-next: build failure after merge of the mm tree

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Date: Thu, 21 Dec 2023 18:38:03 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Changbin Du <changbin.du@...wei.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the mm tree

Hi all,

After merging the mm tree, today's linux-next build (x86_64 allnoconfig)
failed like this:

x86_64-linux-gnu-ld: init/main.o: in function `kernel_init':
main.c:(.ref.text+0xbf): undefined reference to `flush_module_init_free_work'

Caused by commit

  1d8053432676 ("modules: wait do_free_init correctly")

This build has
# CONFIG_MODULES is not set

I have applied this (hack) patch for today.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Thu, 21 Dec 2023 18:27:07 +1100
Subject: [PATCH] fix up for "modules: wait do_free_init correctly"

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 init/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/init/main.c b/init/main.c
index f0b7e21ac67f..1df1106ff09b 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1407,7 +1407,9 @@ static void mark_readonly(void)
 		 * flushed so that we don't hit false positives looking for
 		 * insecure pages which are W+X.
 		 */
+#ifdef CONFIG_MODULES
 		flush_module_init_free_work();
+#endif
 		mark_rodata_ro();
 		rodata_test();
 	} else
-- 
2.43.0

-- 
Cheers,
Stephen Rothwell

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